Abstract
Detecting Avian Influenza Virus (H5N1) in Domestic Duck Feathers
Highlights
To the Editor: Free-range domestic ducks can be a key factor in regional spreading of Asian subtype H5N1 avian influenza (AI) virus [1,2,3]
Samples were examined by rapid tests, virus isolation, and reverse transcription–PCR (RT-PCR)
Viruses were isolated from the oropharyngeal swabs, cloacal swabs, and feathers of all birds, and feathers tested positive for the virus for a longer period than did the swabs (Table)
Summary
To the Editor: Free-range domestic ducks can be a key factor in regional spreading of Asian subtype H5N1 avian influenza (AI) virus [1,2,3]. Three 4-week-old domestic ducks (a–c) were inoculated intranasally with 107 50% egg infectious doses (EID50) of 0.1 mL. We collected 3–5 contour feathers, plucked from the body, and 2 sets of oropharyngeal and cloacal swabs from each duck at 24-hour intervals from days 2 through 10 postinoculation (pi).
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